Division 1.7 Where specific principles in Section 2 provide for the use of calculation models in the evaluation of a plant protection product, those models shall:

make a best possible estimation of all relevant processes involved taking into account realistic parameters and assumptions,

be submitted to an evaluation as referred to in point 1.3.,

be reliably validated with measurements carried out under circumstances relevant for the use of the model,

be relevant to the conditions in the area of use,

be supported with details indicating how the model calculates estimates provided, and explanations of all the inputs to the model and details of how they have been derived.